Full Freeview on the Preseli (Pembrokeshire, Wales) transmitter
 | Google Streetview |  | Google map |  | Bing map |  | Google Earth |  | 51.944,-4.661 or 51°56'38"N 4°39'40"W |  | SA41 3QR |
The symbol shows the location of the Preseli (Pembrokeshire, Wales) transmitter which serves 57,000 homes. The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.
Are there any planned engineering works or unexpected transmitter faults on the Preseli (Pembrokeshire, Wales) mast?
Preseli transmitter - Preseli transmitter: Possible effect on TV reception week commencing 04/11/2024 Pixelation or flickering on some or all channels 
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Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
The Preseli (Pembrokeshire, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which Freeview channels does the Preseli transmitter broadcast?
If you have any kind of Freeview fault, follow this Freeview reset procedure first.Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)
The Preseli (Pembrokeshire, Wales) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .
If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.
Which BBC and ITV regional news can I watch from the Preseli transmitter?
BBC Wales Today 1.2m homes 4.7%
from Cardiff CF5 2YQ, 111km east-southeast (118°)
to BBC Wales region - 206 masts.
ITV Cymru Wales 1.2m homes 4.7%
from Cardiff CF5 6XJ, 110km east-southeast (120°)
to ITV Wales region - 206 masts.
Are there any self-help relays?
| Abergynolwyn | Active deflector | Gwynedd | 84 homes |
| Caerberllan | Active deflector | ||
| Cwmtydu A/d | Active deflector | 17 km NNE Newcastle Emlyn | 10 homes 50 caravans |
| Drefelin | Active deflector | 20 km NNW Carmarthen | 36 homes |
| Poppit Sands | Active deflector | 39 km NE Carmarthen Caravan Park | |
| Rhyd-yr-onnen | Active deflector | 20 km N Aberystwyth | 20 homes caravan site |
How will the Preseli (Pembrokeshire, Wales) transmission frequencies change over time?
| 1962-80s | 1984-97 | 1997-98 | 1998-2009 | 2009-13 | 2013-18 | 2013-17 | 31 Oct 2018 | ||
| VHF | B E T | B E T | B E T | W T | K T | K T | K T | ||
| C8 | ITVwaves | ||||||||
| C30 | _local | _local | _local | _local | |||||
| C37 | C5waves | C5waves | |||||||
| C39 | +ArqB | +ArqB | ArqB | ||||||
| C40 | BBC2waves | BBC2waves | BBC2waves | +BBCB | +BBCB | BBCB | |||
| C42 | -SDN | -SDN | -SDN | SDN | |||||
| C43 | ITVwaves | ITVwaves | ITVwaves | +BBCA | +BBCA | +BBCA | BBCA | ||
| C45 | -ArqA | -ArqA | -ArqA | ArqA | |||||
| C46 | BBC1waves | BBC1waves | BBC1waves | +D3+4 | +D3+4 | +D3+4 | D3+4 | ||
| C49tv_off | +ArqB | ||||||||
| C50tv_off | C4waves | C4waves | C4waves | +BBCB |
tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 19 Aug 09 and 16 Sep 09.
How do the old analogue and currrent digital signal levels compare?
| Analogue 1-5 | 100kW | |
| BBCA, D3+4, BBCB | (-7dB) 20kW | |
| SDN, ARQA, ARQB | (-10dB) 10kW | |
| Mux A*, Mux B* | (-17dB) 2kW | |
| Mux 1*, Mux 2*, Mux C*, Mux D* | (-20dB) 1000W |
Which companies have run the Channel 3 services in the Preseli transmitter area
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Monday, 17 January 2011
D
David Weller3:26 PM
Cardigan
My postcode is SA43 1PN, when the switchover came in 2009 I was able to receive all of the freeview channels with good result, now for the last two weeks I am losing channels even BBC1 & BBC2 at times, my equipment has not changed have you turned down the signal strength?
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
David Weller: No changes are made to the signal strength, please see Single frequency interference | ukfree.tv - independent free digital TV advice .
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Wednesday, 14 December 2011
J
John Humphrey Williams7:23 PM
Dolgellau
Hi,just a query re :- Channels in the LL40 1LT
area, Will this area have all the remaining channels in the near future on Freeview ?. At
present there is a limited amount of channels
that can be viewed. I have been told that this
problem is that the reception is relayed to the Mast at LL40 1LT via relay stations.
Awaiting your Response.
Regards John H Williams
| link to this comment |
John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
John Humphrey Williams: Sorry, but no. See Will there ever be more services on the Freeview Light transmitters? | ukfree.tv - independent free digital TV advice .
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John Humphrey Williams: No. Those broadcasters that don't serve your area have chosen the 80-odd most lucrative transmitters.
See here:
Will there ever be more services on the Freeview Light transmitters? | ukfree.tv - independent free digital TV advice
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Sunday, 8 January 2012
M
Mike Angle11:29 AM
Hello. I just tuned in a new Freeview HD TV and unlike my Freesat I can't get CH4 HD but only S4C HD. I am in SA44 and in line of site to the transmitter and get a high signal. I thought both were available here and the Freeview HD availability page indicates I should get CH 4 HD.
Will CH4 HD come to Preseli in the future?
Thanks Mike.
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Mike Angle: Google something like Channel 4 HD Wales.
I would imagine that the answer is likely to be no because if they did put C4HD (I would expect C4 will have to pay for it!) on in Wales, then the spare HD slot that is available will then not be UK-wide; i.e. it will exclude Wales.
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M
Mike6:29 PM
Llandysul
Dave Lindsay.
Thanks for that. I now see that Ch4 HD is not available anywhere in Wales. The Freesat area checker is still claiming it is however.
I noticed a homophone in my post too late.
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 10 January 2012
Mike: Channel 4 HD can be watched in all parts of the UK on Freesat.
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Tuesday, 17 January 2012
Mike Angle: Channel 4 HD is not provided in Wales on Freeview HD, only on Freesat HD.
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